Here's some information about a new Civil War film currently in the earliest stages of pre-production. I have seen the script, and I am impressed. There currently is no casting call or anything like that, but experienced actors and reenactors are almost certainly to be needed in the coming months:
As far as 1863, we’re still in the early ‘rough’ stages. The mere infancy in this films journey. There is no scheduled release date, no scheduled date for Pre-Production and other stages to begin. All of those times will be announced accordingly and properly when the time comes. The film deals with not only the true brutality of the American Civil War, but the psychological ‘warfare’ that each soldier faced. Every detail will be combed over for excruciating detail. From uniforms, equipment, battlefield descriptions, and even locations will be kept as close as possible to what it would have been like. Even though it is not a major blockbuster, there are plenty of details and avenues inside the storyline itself which will not only be a treat to armchair historians/Civil War enthusiasts, but will be hopefully if not one of the most accurate films portraying the year 1863, the most accurate film. Certain actors are being discussed for certain roles, but like everything else, those details are too early to discuss and release at this time.
Taken from: http://gcaggiano.wordpress.com/2011/12/30/previewing-1863-part-i-an-upcoming-film-about-the-civil-war/